/* Test file with clearly different CSS structures */

/* Completely different structures */

/* Animation keyframes */
@keyframes slide-in {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Media query */
@media (max-width: 768px) {
    .responsive-container {
        padding: 10px;
        width: 100%;
    }
}

/* Pseudo-element styling */
.tooltip::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 5px 5px 5px;
    border-style: solid;
    border-color: transparent transparent #333 transparent;
}

/* Table styling - different from buttons */
table.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-family: Arial, sans-serif;
}

/* Complex selector */
.sidebar > nav ul li a:hover {
    background-color: #f0f0f0;
    color: #007bff;
    padding-left: 25px;
}

/* Print styles */
@media print {
    .no-print {
        display: none;
    }
    
    body {
        font-size: 12pt;
        color: black;
        background: white;
    }
}

/* CSS variables */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --spacing-unit: 8px;
    --border-radius: 4px;
}

/* Flexbox utility */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Position utility */
.absolute-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Typography utility */
.text-uppercase {
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Visibility utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Background gradient */
.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Box shadow utility */
.shadow-lg {
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* Border utility */
.border-dashed {
    border: 2px dashed #dee2e6;
}

/* Transform utility */
.rotate-45 {
    transform: rotate(45deg);
}

/* Transition utility */
.transition-all {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Filter utility */
.blur {
    filter: blur(4px);
}

/* Overflow utility */
.overflow-ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}